.hero {
  height: auto;
  min-height: 0;
  max-height: none;
  padding-top: 20px;
  padding-bottom: 90px;
  grid-template-columns: 38% 62%;
  grid-template-rows: 680px auto;
  gap: 0;
}
.hero-copy { align-self: center; }
.hero h1 { font-size: clamp(49px, 4.7vw, 86px); }
.hero .hero-lead { max-width: 410px; font-size: 18px; }
.observatory-wrap { position: relative; grid-column: 2; grid-row: 1; top: auto; right: auto; width: calc(100% + var(--section)); height: 680px; margin-left: -5%; }
.orbit-topline { top: 26px; left: 10%; right: 10%; }
.orbit-topline .tiny-label { letter-spacing: .08em; }
.orbit-topline > span:last-child { display: none; }
.orbit-modes { right: 9%; top: 63px; z-index: 7; }
.orbit-modes button { min-height: 38px; }
.scene-hint { position: absolute; bottom: 28px; left: 10%; color: var(--muted); font-size: 12px; letter-spacing: .09em; z-index: 6; pointer-events: none; }
.scene-hint > span { color: var(--accent); margin-right: 7px; font-size: 19px; }
.scene-export { position: absolute; right: 10%; bottom: 21px; z-index: 7; }
.scene-inspector { --scene-accent: var(--accent); grid-column: 1 / -1; border: 1px solid var(--line); background: var(--surface); position: relative; z-index: 5; padding: 24px 28px 0; display: grid; grid-template-columns: minmax(0,1.1fr) minmax(0,.9fr); gap: 0 30px; }
.scene-inspector::before { content: ''; position: absolute; top: -1px; left: 28px; width: 70px; height: 2px; background: var(--scene-accent); box-shadow: 0 0 22px color-mix(in srgb,var(--scene-accent) 40%,transparent); }
.scene-selection h2 { font-size: 29px; margin: 8px 0 10px; color: var(--scene-accent); }
.scene-selection p { font-size: 14px; margin: 0 0 15px; max-width: 590px; }
.scene-controls { display: flex; align-content: start; align-items: center; justify-content: flex-end; gap: 12px 24px; flex-wrap: wrap; }
.scene-controls .button { min-height: 46px; font-size: 14px; padding: 10px 16px; gap: 20px; }
.scene-controls .small-button { font-size: 13px; min-height: 42px; }
.scene-controls .text-link { font-size: 14px; }
.scene-controls .primary { background: var(--scene-accent); }
.scene-controls .is-running { box-shadow: 0 0 22px color-mix(in srgb,var(--scene-accent) 20%,transparent); }
.signal-readout { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); margin: 12px 0 0; border-top: 1px solid var(--line); position: relative; }
.signal-readout::after { content: ''; width: calc(var(--signal-progress,0) * 100%); height: 2px; background: var(--scene-accent); position: absolute; top: -1px; left: 0; }
.signal-stage { display: flex; align-items: flex-start; gap: 12px; padding: 16px 14px; border-right: 1px solid var(--line); min-width: 0; }
.signal-stage:first-child { padding-left: 0; }
.signal-stage:last-child { border-right: 0; }
.signal-index { font-size: 12px; color: var(--muted); padding-top: 2px; }
.signal-stage b { font-size: 13px; font-weight: 500; display: block; }
.signal-stage small { font-size: 12px; color: var(--muted); display: block; margin-top: 4px; }
.signal-stage.is-current { background: color-mix(in srgb,var(--scene-accent) 6%,transparent); }
.signal-stage.is-current b,.signal-stage.is-current .signal-index,.signal-stage.is-passed .signal-index { color: var(--scene-accent); }
.scene-project-links { grid-column: 1 / -1; display: flex; gap: 24px; border-top: 1px solid var(--line); }
.scene-model-note { grid-column: 1 / -1; font-size: 12px; margin: 4px 0 12px; color: var(--muted); }
.scene-project-links a { font-size: 12px; padding: 11px 0; min-height: 42px; }
.scene-project-links a:nth-child(1) { color: var(--mint); }
.scene-project-links a:nth-child(2) { color: var(--orange); }
.scene-project-links a:nth-child(3) { color: var(--violet); }
.scene-project-links a:nth-child(4) { color: var(--blue); }
.scene-project-links a[aria-current] { text-decoration: underline; text-underline-offset: 5px; }
.card-discovery { position: absolute; left: 25px; bottom: 15px; font-size: 13px; color: var(--case-color); opacity: 0; transform: translateY(8px); transition: opacity .25s,transform .25s; }
.case-card:hover .card-discovery,.case-card:focus-within .card-discovery { opacity: 1; transform: none; }
.case-card:hover .graphic-corner,.case-card:focus-within .graphic-corner { opacity: 0; }
.case-card.is-selected { border-color: var(--case-color); }
.case-card.is-preview .case-graphic { background-color: color-mix(in srgb,var(--case-color) 6%,var(--surface)); }
.case-card svg .flow { animation-play-state: paused; }
.case-card:hover svg .flow,.case-card:focus-within svg .flow { animation-play-state: running; }
.workbench { background: var(--surface); border-top: 2px solid var(--case-color); padding-top: 25px; scroll-margin-top: 100px; }
.workbench-top { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-bottom: 25px; border-bottom: 1px solid var(--line); }
.workbench-top button { min-height: 44px; }
.workbench-heading { display: flex; justify-content: space-between; align-items: flex-end; gap: 50px; padding: 40px 0; }
.workbench-heading h2 { font-size: clamp(38px,4vw,64px); overflow-wrap: anywhere; }
.workbench-heading > p { max-width: 390px; margin-bottom: 0; font-size: 17px; }
.workbench .case-type { color: var(--case-color); }
.workbench-grid { display: grid; grid-template-columns: minmax(0,1fr) 300px; gap: 28px; align-items: start; }
.workbench-experiment { min-width: 0; }
.workbench-facts { background: var(--bg); padding: 27px; border: 1px solid var(--line); }
.workbench-facts h3 { font-size: 28px; margin-top: 20px; }
.workbench-facts p { font-size: 15px; line-height: 1.7; }
.workbench-facts .tiny-label { font-size: 12px; letter-spacing: .06em; }
.fact-delivery,.fact-limits { border-top: 1px solid var(--line); padding-top: 20px; margin-top: 25px; }
.fact-delivery p { color: var(--text); }
.fact-limits p { font-size: 13px; }
.workbench-decisions { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 30px; margin-top: 35px; }
.workbench-decisions article { border-top: 1px solid var(--line); padding-top: 22px; }
.workbench-decisions h3 { font-size: 26px; margin: 14px 0; }
.workbench-decisions p { font-size: 15px; }
.workbench-bottom { display: flex; align-items: center; gap: 25px; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 28px; margin-top: 20px; }
.workbench-question { display: block; width: 100%; font-size: 25px; color: var(--muted); max-width: 760px; }
.laboratory-console { border: 1px solid var(--line); background: var(--bg); }
.laboratory-console > .lab-tabs { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); border-bottom: 1px solid var(--line); }
.laboratory-console > .lab-tabs button { justify-content: center; padding: 20px 12px; min-height: 60px; }
.laboratory-console > .lab-tabs button:last-child { border-right: 0; }
.laboratory-console .lab-bottom { gap: 20px; }
.laboratory-console .lab-bottom > span { font-size: 12px; letter-spacing: .03em; }
.ai-node { border: 0; background: transparent; padding-inline: 4px; }
.activity-month { width: 100%; background: transparent; color: var(--text); border: 1px solid transparent; padding: 8px; min-height: 50px; text-align: left; margin-bottom: 7px; }
.activity-month[aria-pressed="true"] { border-color: var(--violet); background: color-mix(in srgb,var(--violet) 5%,transparent); }
.activity-month:hover { background: color-mix(in srgb,var(--violet) 8%,transparent); }
.usage-bar-track,.usage-bar { display: block; }
.activity-inspector { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; border-top: 1px solid var(--line); padding-top: 26px; margin-top: 28px; }
.activity-inspector h3 { font-size: clamp(26px,3.4vw,49px); margin: 18px 0 14px; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.activity-inspector h3 span { display: block; font-size: 14px; color: var(--muted); letter-spacing: 0; margin-top: 10px; }
.activity-inspector p,.activity-inspector label { font-size: 14px; }
.activity-inspector select { margin: 10px 0 20px; }
.activity-difference { display: flex; align-items: baseline; justify-content: space-between; gap: 15px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.activity-difference span { color: var(--muted); font-size: 13px; }
.activity-difference strong { font-size: 20px; font-weight: 400; color: var(--violet); }
.activity-selected { background: color-mix(in srgb,var(--violet) 10%,transparent); }
.method-instrument { border: 1px solid var(--line); background: var(--surface); }
.method-stage-buttons { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); border-bottom: 1px solid var(--line); }
.method-stage-buttons button { display: flex; align-items: center; justify-content: center; gap: 14px; padding: 18px 10px; min-height: 54px; border: 0; border-right: 1px solid var(--line); background: none; font-size: 15px; }
.method-stage-buttons button:last-child { border-right: 0; }
.method-stage-buttons button span { font-size: 12px; color: var(--muted); }
.method-stage-buttons button[aria-pressed="true"] { color: var(--accent); background: var(--raised); }
.method-display { display: grid; grid-template-columns: 1.6fr 1fr; align-items: center; }
#method-diagram { display: block; width: 100%; height: 330px; padding: 15px; }
.method-readout { border-left: 1px solid var(--line); padding: 36px; min-height: 300px; }
.method-readout h3 { font-size: 33px; margin: 23px 0 18px; }
.method-readout p { font-size: 16px; }
.method-bottom { display: flex; align-items: center; gap: 24px; border-top: 1px solid var(--line); padding: 22px 28px; }
.method-bottom label { font-size: 13px; color: var(--muted); }
.method-bottom input { flex: 1; min-width: 80px; max-width: 300px; }
.method-bottom .button { white-space: nowrap; }
.method-signal { stroke-dasharray: 8 14; animation: dash 3s linear infinite; }
.method-node-active { filter: drop-shadow(0 0 8px color-mix(in srgb,var(--mint) 30%,transparent)); }
.hero-tour { margin-top: 22px; color: var(--accent); gap: 18px; display: inline-flex; align-items: center; }
.scene-lenses { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 1.2fr 1fr; gap: 16px 26px; border-top: 1px solid var(--line); padding-top: 20px; margin-top: 12px; }
.scene-lenses label { display: flex; flex-direction: column; gap: 8px; color: var(--muted); font-size: 13px; min-width: 0; }
.scene-lenses select { min-height: 44px; padding: 8px 12px; max-width: 100%; }
.scene-lenses input { width: 100%; min-height: 44px; accent-color: var(--scene-accent); }
.scene-lenses p { grid-column: 1 / -1; margin: 0 0 12px; font-size: 14px; color: var(--text); }
.laboratory-console .lab-bottom { display: flex; flex-wrap: wrap; align-items: flex-end; padding: 24px; }
.experiment-export { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; }
.experiment-export label { font-size: 13px; color: var(--muted); }
.experiment-export select { min-height: 44px; padding: 8px 12px; min-width: 180px; }
.experiment-export #export-progress { font-size: 13px; color: var(--accent); flex-basis: 100%; }
.import-experiment { display: flex; flex-direction: column; gap: 10px; color: var(--muted); font-size: 13px; max-width: 280px; }
.import-experiment input { max-width: 100%; min-height: 44px; font-size: 13px; }
.workbench-top { flex-wrap: wrap; }
.workbench-top .workbench-tour { color: var(--case-color); }
.tour-console { position: fixed; z-index: 30; right: 24px; bottom: 24px; width: min(430px,calc(100% - 48px)); border: 1px solid var(--line); border-top: 2px solid var(--accent); padding: 18px 22px; background: var(--bg); box-shadow: 0 16px 75px rgb(0 0 0 / .32); }
.tour-heading { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.tour-heading .tiny-label { color: var(--accent); font-size: 12px; }
.tour-heading button { min-height: 44px; }
.tour-console p { color: var(--text); font-size: 16px; line-height: 1.45; margin: 8px 0 16px; }
.tour-progress { display: flex; gap: 5px; }
.tour-progress button { flex: 1; height: 24px; min-width: 24px; padding: 10px 0; border: 0; background: transparent; position: relative; }
.tour-progress button::before { content: ''; display: block; height: 3px; background: var(--line); }
.tour-progress button[aria-current]::before { background: var(--accent); box-shadow: 0 0 12px color-mix(in srgb,var(--accent) 30%,transparent); }
.tour-actions { display: flex; gap: 8px 18px; flex-wrap: wrap; margin-top: 7px; }
.tour-actions button { min-height: 44px; font-size: 13px; }
:root[data-tour="true"] .experience-tools { visibility: hidden; }
:root[data-tour="true"] { scroll-padding-bottom: 280px; }
.activity-timeline { display: grid; grid-template-columns: 17fr 31fr 30fr 11fr; gap: 4px; margin-top: 25px; }
.activity-timeline button { background: var(--surface); border: 1px solid var(--line); padding: 16px 12px; min-height: 70px; text-align: left; font-size: 13px; overflow-wrap: anywhere; }
.activity-timeline button[aria-pressed="true"] { border-color: var(--violet); color: var(--violet); background: color-mix(in srgb,var(--violet) 7%,var(--surface)); }
.activity-timeline button.is-reference { border-style: dashed; border-color: var(--violet); }
.activity-timeline small { display: block; font-size: 12px; color: var(--muted); margin-top: 6px; }
.method-inspect-row { padding: 13px 28px; border-top: 1px solid var(--line); font-size: 14px; color: var(--muted); }
.method-fact { cursor: pointer; outline: none; }
.method-fact:hover circle,.method-fact:focus-visible circle { stroke-width: 5; stroke: var(--accent); }
@media (max-width:760px) {
  .scene-lenses { grid-template-columns: 1fr; gap: 12px; }
  .hero-tour { margin-top: 16px; }
  .laboratory-console .lab-bottom { padding: 20px 16px; gap: 24px; align-items: stretch; }
  .experiment-export { width: 100%; }
  .experiment-export label { width: 100%; }
  .experiment-export select { min-width: 0; flex: 1; }
  .tour-console { width: auto; left: 12px; right: 12px; bottom: 12px; padding: 12px 16px; }
  .tour-console p { font-size: 14px; margin: 3px 0 8px; }
  .tour-actions { gap: 4px 14px; }
  .tour-actions button { font-size: 12px; }
  .activity-timeline { grid-template-columns: repeat(4,minmax(0,1fr)); gap: 3px; }
  .activity-timeline button { font-size: 12px; padding: 12px 6px; }
  .method-inspect-row { padding: 16px; }
}
@media (max-width:1200px) {
  .hero { grid-template-rows: 580px auto; }
  .hero h1 { font-size: 56px; }
  .observatory-wrap { height: 580px; }
  .scene-inspector { padding: 22px 24px 0; }
  .workbench-grid { grid-template-columns: minmax(0,1fr); }
  .workbench-facts { display: grid; grid-template-columns: 1fr 1fr; gap: 15px 30px; }
  .workbench-facts > .tiny-label,.workbench-facts > h3,.workbench-facts > p { grid-column: 1 / -1; }
  .workbench-facts > h3 { margin: 0; }
  .fact-delivery,.fact-limits { margin-top: 0; }
}
@media (max-width:760px) {
  .hero { display: block; padding-top: 42px; padding-bottom: 70px; }
  .hero h1 { font-size: clamp(40px,8.9vw,65px); }
  .hero .hero-lead { font-size: 17px; }
  .observatory-wrap { width: calc(100% + 48px); margin: 5px -24px 0; height: 500px; }
  .orbit-topline { top: 20px; left: 24px; right: 24px; }
  .orbit-topline .tiny-label { font-size: 12px; letter-spacing: .03em; }
  .orbit-modes { top: 53px; right: 24px; }
  .scene-hint { left: 24px; bottom: 28px; font-size: 12px; letter-spacing: .02em; }
  .scene-export { right: 24px; bottom: 0; }
  .scene-inspector { margin-top: 12px; padding: 22px 20px 0; grid-template-columns: 1fr; gap: 8px; }
  .scene-selection h2 { font-size: 27px; }
  .scene-controls { justify-content: flex-start; gap: 10px 18px; }
  .scene-controls .text-link { width: 100%; }
  .signal-readout { grid-template-columns: 1fr 1fr; margin-top: 15px; }
  .signal-stage { padding: 12px 8px; gap: 8px; }
  .signal-stage:nth-child(2) { border-right: 0; }
  .signal-stage:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .signal-stage:nth-child(3) { padding-left: 0; }
  .signal-stage b { font-size: 12px; }
  .scene-project-links { justify-content: space-between; gap: 8px; margin-top: 5px; }
  .workbench { padding-inline: 16px; scroll-margin-top: 80px; }
  .workbench-top { gap: 12px; font-size: 12px; padding-bottom: 15px; }
  .workbench-top .tiny-label { font-size: 12px; letter-spacing: 0; }
  .workbench-heading { display: block; padding: 28px 0; }
  .workbench-heading h2 { font-size: 36px; margin-bottom: 20px; }
  .workbench-heading > p { font-size: 16px; }
  .workbench-grid { gap: 24px; }
  .workbench-facts { display: block; padding: 23px; }
  .workbench-facts > h3 { margin: 18px 0; }
  .fact-delivery,.fact-limits { margin-top: 25px; }
  .workbench-decisions { grid-template-columns: 1fr; gap: 15px; }
  .workbench-bottom { gap: 18px; }
  .workbench-bottom .button { font-size: 14px; gap: 15px; }
  .workbench-question { font-size: 22px; }
  .laboratory-console > .lab-tabs button { padding: 13px 4px; font-size: 13px; min-height: 52px; }
  .lab-bottom { display: block; }
  .lab-bottom > span { margin-bottom: 12px; }
  .activity-inspector { grid-template-columns: 1fr; gap: 22px; }
  .activity-inspector h3 { font-size: 34px; }
  .activity-month { grid-template-columns: 65px 1fr 65px; gap: 6px; padding: 6px 4px; }
  .method-stage-buttons button { font-size: 12px; padding: 12px 3px; gap: 5px; }
  .method-stage-buttons button span { display: none; }
  .method-display { grid-template-columns: 1fr; }
  #method-diagram { height: 245px; padding: 0; }
  .method-readout { border-left: 0; border-top: 1px solid var(--line); min-height: 0; padding: 25px; }
  .method-readout h3 { font-size: 29px; margin-top: 17px; }
  .method-bottom { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; padding: 20px; }
  .method-bottom label { font-size: 12px; }
  .method-bottom input { width: 100%; max-width: none; }
  .method-bottom .small-button { justify-self: end; }
}
@media (max-width:370px) {
  .observatory-wrap { width: calc(100% + 40px); margin-left: -20px; margin-right: -20px; height: 470px; }
  .hero h1 { font-size: 39px; }
  .scene-inspector { padding-inline: 16px; }
  .scene-controls { gap: 8px 13px; }
  .scene-controls .small-button { font-size: 12px; }
  .scene-controls .button { font-size: 13px; gap: 12px; padding-inline: 12px; }
  .workbench-heading h2 { font-size: 30px; }
  .workbench-top .tiny-label { display: none; }
  .activity-inspector h3 { font-size: 29px; }
}
@media (prefers-reduced-motion:reduce) {
  .card-discovery { transition: none; }
  .method-signal { animation: none; }
}
@media print {
  .hero { display: block; padding: 30px; }
  .scene-inspector,.workbench-top,.workbench-experiment,.laboratory-console,.method-instrument,.activity-month { display: none; }
  .workbench { display: block; padding: 30px; }
  .workbench-grid,.workbench-facts { display: block; }
  .workbench-decisions { display: block; }
  .workbench-heading { display: block; }
  .workbench-facts { break-inside: avoid; }
}
#method-diagram { height: 380px; padding: 0; }
.instrument-tooltip { position: fixed; z-index: 10000; box-sizing: border-box; max-width: calc(100vw - 24px); max-height: min(360px, calc(100dvh - 24px)); overflow: auto; padding: 17px 19px; border: 1px solid var(--accent); border-radius: 9px; background: var(--bg); color: var(--text); box-shadow: 0 12px 40px rgb(0 0 0 / 24%); font-family: var(--sans); font-size: 13px; line-height: 1.55; font-weight: 400; letter-spacing: 0; text-align: left; white-space: normal; cursor: auto; }
.instrument-tooltip[hidden] { display: none !important; }
.instrument-tooltip strong { display: block; color: var(--text); font-size: 14px; line-height: 1.35; font-weight: 600; margin: 0 0 8px; }
.instrument-tooltip p { font-size: 13px; line-height: 1.55; color: var(--text); margin: 0; }
.instrument-tooltip-hint { display: none; padding-top: 11px; margin-top: 11px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.context-help-heading { position: relative; padding-right: 34px; min-height: 24px; }
.instrument .context-help-button { position: absolute; top: -10px; right: -8px; display: grid; place-items: center; width: 44px; height: 44px; min-width: 44px; min-height: 44px; margin: 0; padding: 0; color: var(--inst-color, var(--accent)); border: 0; background: transparent; border-radius: 50%; font: 600 13px/1 var(--sans); cursor: help; }
.context-help-button::before { content: ''; position: absolute; width: 22px; height: 22px; border: 1px solid currentColor; border-radius: 50%; opacity: .5; }
.context-help-button:hover::before { opacity: 1; }
.context-help-button:focus-visible { outline: 2px solid var(--inst-color, var(--accent)); outline-offset: -5px; }
@media (hover: none), (pointer: coarse) { .instrument-tooltip-hint { display: block; } }
@media print { .instrument-tooltip, .context-help-button { display: none !important; } }

.signal-stage { border:0; border-right:1px solid var(--line); background:transparent; text-align:left; color:var(--text); cursor:pointer; min-height:76px; }
.signal-stage:hover,.signal-stage[aria-pressed="true"] { background:color-mix(in srgb,var(--scene-accent) 9%,var(--bg)); }
.signal-stage[aria-pressed="true"] { box-shadow:inset 0 -2px var(--scene-accent); }
.scene-component-inspector { grid-column:1 / -1; border-top:1px solid var(--line); padding-top:16px; }
#scene-component-values { display:flex; flex-wrap:wrap; gap:16px 35px; margin:14px 0 8px; }
#scene-component-values div { min-width:110px; } #scene-component-values dt { font-size:12px; color:var(--muted); } #scene-component-values dd { margin:5px 0 0; font-size:16px; color:var(--text); font-variant-numeric:tabular-nums; }
.workbench-role h4 { font:600 15px/1.5 var(--sans); margin:20px 0 7px; color:var(--case-color); }
.workbench-role p { margin-bottom:15px; }
.workbench-context { max-width:76ch; margin-top:50px; } .workbench-context h3 { font-size:28px; margin-bottom:18px; }
.workbench-context p,.workbench-source-details p { line-height:1.75; }
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